• Genomics & Informatics
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• 제7권1호
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• pp.41-45
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• 2009

The Korean Agricultural Culture Collection (KACC) has developed a web-based system to provide an integrated database with information updates about microbial resources. This integrated database consists of 5 major functions and contains general information, which includes identification numbers, culture media composition, image information, DNA sequences, patent information, and general forms for ordering and depositing microorganisms. In 2008, KACC started providing characterization information. KACC maintains 9,801 cultures of microorganisms, including 3,296 strains of bacteria, 4,734 fungi, 784 actinomycetes, 64 yeasts, and 923 others.

• Journal of Microbiology
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• 제41권1호
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• pp.41-45
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• 2003

N crassa mutant strain nap showed reduced growth rate, decreased electric membrane potential, and elevated intracellular ATP content in comparison to the wild type. Blue light induced a hyperpolarization of the membrane potential in both strains. The analysis of oxidative and phosphorylation activities of mitochondria isolated from the two strains has revealed that nap utilized more efficient oxidative pathways. The higher intracellular ATP content in the nap was presumably due to impaired transport systems of the plasma membrane, and to a lesser extent to the functioning of the fully competent respiratory chain. The excess ATP possibly accounts for carotenoid accumulation in the mutant.

• 천문학논총
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• 제30권2호
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• pp.761-763
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• 2015

Colors have been derived from the observed optical spectrum of Mars and Jupiter. It is known that the planets and the Moon emit reflected sunlight and thus their spectra are similar to the spectrum of solar radiation. The question was then why is the color of Mars different from that of other planets, i.e. red, although it would share the same spectrum of reflected sunlight. Can one derive color from the spectrum? Therefore, we observed the optical spectra of the scattered sunlight in day time for the Moon and Mars using a 1-D array spectrograph on the 12-inch reflecting telescope in the Korea Science Academy of KAIST in Busan, Korea. We adopted the International Commission on Illumination (CIE) in 1931 of three spectral sensitivity peaks for the human eye in short, medium and long wavelengths in visible light. The observed spectra were imposed on CIE sensitivities and the color detected by the human eye was derived. The Mars spectrum represents red color and the Moon white. It is a similar color to that which a human would see. This result means that color is easily derived from astronomical spectra. The appearance of the planets surface can be determined for Mars, which is the result of iron oxide.

• Toxicological Research
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• 제34권4호
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• pp.373-373
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• 2018

• Journal of Species Research
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• 제2권1호
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• pp.79-84
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• 2013

While collecting Poaceae weeds at Jeju-do, we found two unrecorded species of the Paspalum, P. notatum Fl$\ddot{u}$gg$\acute{e}$ and P. urvillei Steud. We provide the descriptions and illustrations of both species. Key to the newly recorded species and related taxa of Korean Paspalum is also presented.

• 한국잡초학회지
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• 제30권4호
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• pp.405-411
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• 2010

휴경논에 분포하고 있는 식생구조에 대해 식물사회학적 연구를 수행하였다. 총 22개 조사구에 대한 식생자료의 분석은 Zurich-Montpellier 학파의 방법을 이용하였다. 휴경논 식생조사 결과 1아군집, 5군락으로 구분되었다. 고마리군집(Polygonetum thunbergii Lohm. et Miyawaki 1962)의 고마리전형아군집, 골풀군락, 갈대군락, 물달개비군락, 사마귀풀군락, 부들군락. 요인분석에서 식생단위와 환경과의 상관관계를 보면, 사마귀풀군락과 물달개비군락은 토양 전질소와 음의 상관관계, 갈대군락과 고마리아군집은 토양 pH가 낮은 지역에 분포하는 것으로 분석되었다.

• 센서학회지
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• 제24권1호
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• pp.6-9
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• 2015

Conventional leak detectors are widely based on helium gas sensors. However, the usage of hydrogen sensors in leak detectors has increased because of the high prices of helium leak detectors and the dearth in the supply of helium gas. In this study, a hydrogen leak detector was developed using solid-state hydrogen sensors. The hydrogen sensors are based on Park-Rapp probes with heterojunctions made by oxygen-ion conducting Yttria-stabilized zirconia and proton-conducting In-doped $CaZrO_3$. The hydrogen sensors were used for determining the potential difference between air and air balanced 5 ppm of $H_2$. Even though the Park-Rapp probe shows an excellent selectivity for hydrogen, the sensitivity of the sensor was low because of the low concentration of hydrogen, and the oxygen on the surface of the sensor. In order to increase the sensitivity of the sensor, the sensors were connected in series by Pt wires to increase the potential difference. The sensors were tested at temperatures ranging from $500-600^{\circ}C$.

• The Plant Pathology Journal
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• 제28권4호
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• pp.454-454
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• 2012

• International Journal of Industrial Entomology and Biomaterials
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• 제17권2호
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• pp.217-221
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• 2008

Dung beetle larvae at the $3^{rd}$ instar were injected with lipopolysaccaride and inducible proteins were examined within a pI level of 3-10 and a size level by proteomics, including 1-D SDS PAGE analysis and antibacterial assay. The immune infected larvae extracts provided seven protein bands in one-dimensional electrophoresis and its antibacterial activity also checked. Hemolymph protein from immune infected larvae of the dung beetle were separated by twodimensional gel electrophoresis and compared with those from native larvae. In 2-D gel electrophoresis, we detected 63 immune infected unique and 32 up-regulated proteins, and 36 proteins that were down-regulated or not present in treated gel. Ten protein spots from unique proteins and those presented as different level of abundance in infected and native larvae were specially expressed. These differentially expressed proteins were proposed to be involved in the defense mechanism against microorganism.

• Journal of the Korean Data and Information Science Society
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• 제21권1호
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• pp.11-20
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• 2010

본 연구는 기업의 마케팅 전략에서 많이 사용되고 있는 다차원 척도법을 이용하여 육 해 공군사관학교, 경찰대학, 간호사관학교 등 특수목적 대학에 대한 이미지 포지셔닝 분석을 실시하여, 이들 대학이 수험생들에게 어떠한 이미지로 인식되고 있는지에 대한 진단과 이로부터 우수학생을 유치하기 위한 이미지 개선 방안과 홍보 전략을 수립하는데 있어 필요한 기초자료를 제공하는데 그 목적이 있다. 연구결과, 육 해 공 3군사관학교는 체력 및 신체조건, 학교전통, 선 후배간의 유대관계가 강한 학교로, 반면에 경찰대는 사회진출이 용이하고, 학업성적이 우수해야 입학할 수 있는 학교로 평가되고 있는 것으로 나타났다. 또한, 육사는 교육 환경과 시설, 교육 프로그램, 교수진, 학교전통, 선 후배간의 유대관계 등에서 해사와 공사보다 더 우수한 것으로 평가되고 있지만, 지원자들의 학업성적 수준에서 경찰대보다 떨어지는 것으로 평가되고 있고, 사회 진출면에서도 경찰대보다 불리한 것으로 평가되고 있는 것으로 나타났다.